Self-inking stamp



FIG. 1 is a left side elevation of a self-inking stamp showing my newdesign;

FIG. 2 is a rear view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a top, left side perspective view thereof; and,

FIG. 7 is a bottom, left side perspective view thereof.

The ornamental design for a self-inking stamp, as shown and describedabove.